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Jason parks8fd5bc92011-01-12 16:03:31 -06001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.settings;
18
Jason parks8fd5bc92011-01-12 16:03:31 -060019import android.app.Activity;
20import android.app.StatusBarManager;
21import android.content.ComponentName;
22import android.content.Context;
Jason parksec5a45e2011-01-18 15:28:36 -060023import android.content.Intent;
Jason parks8fd5bc92011-01-12 16:03:31 -060024import android.content.pm.PackageManager;
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -070025import android.media.AudioManager;
Jason parks06c5ff42011-03-01 10:17:40 -060026import android.os.AsyncTask;
Jason parks8fd5bc92011-01-12 16:03:31 -060027import android.os.Bundle;
Jason parksec5a45e2011-01-18 15:28:36 -060028import android.os.Handler;
Jason parks8fd5bc92011-01-12 16:03:31 -060029import android.os.IBinder;
Jason parksec5a45e2011-01-18 15:28:36 -060030import android.os.Message;
Jason parks35933812011-01-21 15:48:20 -060031import android.os.PowerManager;
David Brown8373b452011-06-20 12:38:45 -070032import android.os.RemoteException;
Jason parks8fd5bc92011-01-12 16:03:31 -060033import android.os.ServiceManager;
34import android.os.SystemProperties;
Christopher Tate6a5929b2012-09-10 15:39:05 -070035import android.os.UserHandle;
Jason parks8fd5bc92011-01-12 16:03:31 -060036import android.os.storage.IMountService;
Paul Lawrenceb05f39d2014-02-04 10:22:19 -080037import android.os.storage.StorageManager;
Vikram Aggarwal6ebbd302012-05-04 14:09:52 -070038import android.provider.Settings;
David Brown8373b452011-06-20 12:38:45 -070039import android.telephony.TelephonyManager;
Vikram Aggarwald1147252012-05-08 13:52:30 -070040import android.text.Editable;
Jason parksec5a45e2011-01-18 15:28:36 -060041import android.text.TextUtils;
Vikram Aggarwald1147252012-05-08 13:52:30 -070042import android.text.TextWatcher;
Jason parks8fd5bc92011-01-12 16:03:31 -060043import android.util.Log;
44import android.view.KeyEvent;
Vikram Aggarwald1147252012-05-08 13:52:30 -070045import android.view.MotionEvent;
Andy Stadler13d62042011-01-31 19:21:37 -080046import android.view.View;
Jim Millerfb3d5ca2013-11-14 14:40:22 -080047import android.view.WindowManager;
Andy Stadler13d62042011-01-31 19:21:37 -080048import android.view.View.OnClickListener;
Vikram Aggarwald1147252012-05-08 13:52:30 -070049import android.view.View.OnKeyListener;
50import android.view.View.OnTouchListener;
Jason parks8fd5bc92011-01-12 16:03:31 -060051import android.view.inputmethod.EditorInfo;
Ben Komalo9fcb6a72011-08-26 14:40:18 -070052import android.view.inputmethod.InputMethodInfo;
Jason parks75c085e2011-02-10 14:03:47 -060053import android.view.inputmethod.InputMethodManager;
Ben Komalo9fcb6a72011-08-26 14:40:18 -070054import android.view.inputmethod.InputMethodSubtype;
Andy Stadler13d62042011-01-31 19:21:37 -080055import android.widget.Button;
Jason parksec5a45e2011-01-18 15:28:36 -060056import android.widget.EditText;
57import android.widget.ProgressBar;
Jason parks8fd5bc92011-01-12 16:03:31 -060058import android.widget.TextView;
59
Vikram Aggarwalbf459da2012-11-08 16:54:59 -080060import com.android.internal.statusbar.StatusBarIcon;
Ben Komalo91a2f052011-08-16 17:48:25 -070061import com.android.internal.telephony.ITelephony;
Vikram Aggarwalea1186d2012-05-03 15:35:03 -070062import com.android.internal.telephony.Phone;
Wink Saville55434042012-06-14 12:33:43 -070063import com.android.internal.telephony.PhoneConstants;
Paul Lawrenceb05f39d2014-02-04 10:22:19 -080064import com.android.internal.widget.LockPatternUtils;
65import com.android.internal.widget.LockPatternView;
66import com.android.internal.widget.LockPatternView.Cell;
Ben Komalo9fcb6a72011-08-26 14:40:18 -070067
68import java.util.List;
Ben Komalo91a2f052011-08-16 17:48:25 -070069
70/**
71 * Settings screens to show the UI flows for encrypting/decrypting the device.
72 *
73 * This may be started via adb for debugging the UI layout, without having to go through
74 * encryption flows everytime. It should be noted that starting the activity in this manner
75 * is only useful for verifying UI-correctness - the behavior will not be identical.
76 * <pre>
77 * $ adb shell pm enable com.android.settings/.CryptKeeper
78 * $ adb shell am start \
79 * -e "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW" "progress" \
80 * -n com.android.settings/.CryptKeeper
81 * </pre>
82 */
Vikram Aggarwald1147252012-05-08 13:52:30 -070083public class CryptKeeper extends Activity implements TextView.OnEditorActionListener,
84 OnKeyListener, OnTouchListener, TextWatcher {
Jason parksec5a45e2011-01-18 15:28:36 -060085 private static final String TAG = "CryptKeeper";
Jason parks35933812011-01-21 15:48:20 -060086
Jason parks8fd5bc92011-01-12 16:03:31 -060087 private static final String DECRYPT_STATE = "trigger_restart_framework";
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -070088 /** Message sent to us to indicate encryption update progress. */
89 private static final int MESSAGE_UPDATE_PROGRESS = 1;
90 /** Message sent to us to cool-down (waste user's time between password attempts) */
91 private static final int MESSAGE_COOLDOWN = 2;
92 /** Message sent to us to indicate alerting the user that we are waiting for password entry */
93 private static final int MESSAGE_NOTIFY = 3;
Jason parksec5a45e2011-01-18 15:28:36 -060094
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -070095 // Constants used to control policy.
Jason parksec5a45e2011-01-18 15:28:36 -060096 private static final int MAX_FAILED_ATTEMPTS = 30;
97 private static final int COOL_DOWN_ATTEMPTS = 10;
98 private static final int COOL_DOWN_INTERVAL = 30; // 30 seconds
99
David Brown8373b452011-06-20 12:38:45 -0700100 // Intent action for launching the Emergency Dialer activity.
101 static final String ACTION_EMERGENCY_DIAL = "com.android.phone.EmergencyDialer.DIAL";
102
Ben Komalo91a2f052011-08-16 17:48:25 -0700103 // Debug Intent extras so that this Activity may be started via adb for debugging UI layouts
104 private static final String EXTRA_FORCE_VIEW =
105 "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW";
106 private static final String FORCE_VIEW_PROGRESS = "progress";
Ben Komalo91a2f052011-08-16 17:48:25 -0700107 private static final String FORCE_VIEW_ERROR = "error";
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700108 private static final String FORCE_VIEW_PASSWORD = "password";
Ben Komalo91a2f052011-08-16 17:48:25 -0700109
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700110 /** When encryption is detected, this flag indicates whether or not we've checked for errors. */
Ben Komalo0e666092011-09-01 15:42:00 -0700111 private boolean mValidationComplete;
Ben Komalod4758ef2011-09-08 14:36:08 -0700112 private boolean mValidationRequested;
Ben Komalo0e666092011-09-01 15:42:00 -0700113 /** A flag to indicate that the volume is in a bad state (e.g. partially encrypted). */
114 private boolean mEncryptionGoneBad;
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700115 /** A flag to indicate when the back event should be ignored */
116 private boolean mIgnoreBack = false;
Andy Stadler14997402011-02-01 15:34:59 -0800117 private int mCooldown;
118 PowerManager.WakeLock mWakeLock;
Jason parks06c5ff42011-03-01 10:17:40 -0600119 private EditText mPasswordEntry;
Paul Lawrenceb05f39d2014-02-04 10:22:19 -0800120 private LockPatternView mLockPatternView;
Vikram Aggarwald1147252012-05-08 13:52:30 -0700121 /** Number of calls to {@link #notifyUser()} to ignore before notifying. */
122 private int mNotificationCountdown = 0;
Andy Stadler14997402011-02-01 15:34:59 -0800123
124 /**
125 * Used to propagate state through configuration changes (e.g. screen rotation)
126 */
127 private static class NonConfigurationInstanceState {
128 final PowerManager.WakeLock wakelock;
129
130 NonConfigurationInstanceState(PowerManager.WakeLock _wakelock) {
131 wakelock = _wakelock;
132 }
133 }
134
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700135 /**
136 * Activity used to fade the screen to black after the password is entered.
137 */
Vikram Aggarwal9f55ae22012-04-02 13:36:35 -0700138 public static class FadeToBlack extends Activity {
Andy Stadler13d62042011-01-31 19:21:37 -0800139 @Override
140 public void onCreate(Bundle savedInstanceState) {
141 super.onCreate(savedInstanceState);
142 setContentView(R.layout.crypt_keeper_blank);
143 }
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700144 /** Ignore all back events. */
145 @Override
146 public void onBackPressed() {
147 return;
148 }
Jason parksf1dbf552011-01-24 16:19:28 -0600149 }
Jason parksec5a45e2011-01-18 15:28:36 -0600150
Jason parks06c5ff42011-03-01 10:17:40 -0600151 private class DecryptTask extends AsyncTask<String, Void, Integer> {
152 @Override
153 protected Integer doInBackground(String... params) {
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700154 final IMountService service = getMountService();
Jason parks06c5ff42011-03-01 10:17:40 -0600155 try {
156 return service.decryptStorage(params[0]);
157 } catch (Exception e) {
158 Log.e(TAG, "Error while decrypting...", e);
159 return -1;
160 }
161 }
162
163 @Override
164 protected void onPostExecute(Integer failedAttempts) {
165 if (failedAttempts == 0) {
166 // The password was entered successfully. Start the Blank activity
167 // so this activity animates to black before the devices starts. Note
168 // It has 1 second to complete the animation or it will be frozen
169 // until the boot animation comes back up.
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700170 Intent intent = new Intent(CryptKeeper.this, FadeToBlack.class);
Jason parks06c5ff42011-03-01 10:17:40 -0600171 finish();
172 startActivity(intent);
173 } else if (failedAttempts == MAX_FAILED_ATTEMPTS) {
174 // Factory reset the device.
175 sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR"));
176 } else if ((failedAttempts % COOL_DOWN_ATTEMPTS) == 0) {
177 mCooldown = COOL_DOWN_INTERVAL;
178 cooldown();
179 } else {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700180 final TextView status = (TextView) findViewById(R.id.status);
181 status.setText(R.string.try_again);
Jason parks06c5ff42011-03-01 10:17:40 -0600182 // Reenable the password entry
Paul Lawrenceb05f39d2014-02-04 10:22:19 -0800183 if (mPasswordEntry != null) {
184 mPasswordEntry.setEnabled(true);
185 }
Jason parks06c5ff42011-03-01 10:17:40 -0600186 }
187 }
188 }
Jason parks75c085e2011-02-10 14:03:47 -0600189
Ben Komalo0e666092011-09-01 15:42:00 -0700190 private class ValidationTask extends AsyncTask<Void, Void, Boolean> {
191 @Override
192 protected Boolean doInBackground(Void... params) {
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700193 final IMountService service = getMountService();
Ben Komalo0e666092011-09-01 15:42:00 -0700194 try {
Ben Komalod4758ef2011-09-08 14:36:08 -0700195 Log.d(TAG, "Validating encryption state.");
Ben Komalo0e666092011-09-01 15:42:00 -0700196 int state = service.getEncryptionState();
197 if (state == IMountService.ENCRYPTION_STATE_NONE) {
198 Log.w(TAG, "Unexpectedly in CryptKeeper even though there is no encryption.");
199 return true; // Unexpected, but fine, I guess...
200 }
201 return state == IMountService.ENCRYPTION_STATE_OK;
202 } catch (RemoteException e) {
203 Log.w(TAG, "Unable to get encryption state properly");
204 return true;
205 }
206 }
207
208 @Override
209 protected void onPostExecute(Boolean result) {
210 mValidationComplete = true;
211 if (Boolean.FALSE.equals(result)) {
212 Log.w(TAG, "Incomplete, or corrupted encryption detected. Prompting user to wipe.");
213 mEncryptionGoneBad = true;
Ben Komalod4758ef2011-09-08 14:36:08 -0700214 } else {
215 Log.d(TAG, "Encryption state validated. Proceeding to configure UI");
Ben Komalo0e666092011-09-01 15:42:00 -0700216 }
217 setupUi();
218 }
219 }
220
Ben Komalo91a2f052011-08-16 17:48:25 -0700221 private final Handler mHandler = new Handler() {
Jason parksec5a45e2011-01-18 15:28:36 -0600222 @Override
223 public void handleMessage(Message msg) {
Jason parksec5a45e2011-01-18 15:28:36 -0600224 switch (msg.what) {
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700225 case MESSAGE_UPDATE_PROGRESS:
Jason parksf8217302011-01-26 13:11:42 -0600226 updateProgress();
Jason parksec5a45e2011-01-18 15:28:36 -0600227 break;
Jason parks35933812011-01-21 15:48:20 -0600228
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700229 case MESSAGE_COOLDOWN:
Jason parksf8217302011-01-26 13:11:42 -0600230 cooldown();
Jason parksec5a45e2011-01-18 15:28:36 -0600231 break;
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700232
233 case MESSAGE_NOTIFY:
234 notifyUser();
235 break;
Jason parksec5a45e2011-01-18 15:28:36 -0600236 }
237 }
238 };
Jason parks35933812011-01-21 15:48:20 -0600239
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700240 private AudioManager mAudioManager;
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800241 /** The status bar where back/home/recent buttons are shown. */
242 private StatusBarManager mStatusBar;
243
244 /** All the widgets to disable in the status bar */
245 final private static int sWidgetsToDisable = StatusBarManager.DISABLE_EXPAND
246 | StatusBarManager.DISABLE_NOTIFICATION_ICONS
247 | StatusBarManager.DISABLE_NOTIFICATION_ALERTS
248 | StatusBarManager.DISABLE_SYSTEM_INFO
249 | StatusBarManager.DISABLE_HOME
Alon Albert66d050b2013-09-30 17:08:12 -0700250 | StatusBarManager.DISABLE_SEARCH
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800251 | StatusBarManager.DISABLE_RECENT;
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700252
Ben Komalo91a2f052011-08-16 17:48:25 -0700253 /** @return whether or not this Activity was started for debugging the UI only. */
254 private boolean isDebugView() {
255 return getIntent().hasExtra(EXTRA_FORCE_VIEW);
256 }
257
258 /** @return whether or not this Activity was started for debugging the specific UI view only. */
259 private boolean isDebugView(String viewType /* non-nullable */) {
260 return viewType.equals(getIntent().getStringExtra(EXTRA_FORCE_VIEW));
261 }
262
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700263 /**
264 * Notify the user that we are awaiting input. Currently this sends an audio alert.
265 */
266 private void notifyUser() {
Vikram Aggarwald1147252012-05-08 13:52:30 -0700267 if (mNotificationCountdown > 0) {
Vikram Aggarwald1147252012-05-08 13:52:30 -0700268 --mNotificationCountdown;
269 } else if (mAudioManager != null) {
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700270 try {
271 // Play the standard keypress sound at full volume. This should be available on
272 // every device. We cannot play a ringtone here because media services aren't
273 // available yet. A DTMF-style tone is too soft to be noticed, and might not exist
274 // on tablet devices. The idea is to alert the user that something is needed: this
275 // does not have to be pleasing.
276 mAudioManager.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD, 100);
277 } catch (Exception e) {
278 Log.w(TAG, "notifyUser: Exception while playing sound: " + e);
279 }
280 }
Vikram Aggarwal86b93932012-05-01 16:46:06 -0700281 // Notify the user again in 5 seconds.
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700282 mHandler.removeMessages(MESSAGE_NOTIFY);
Vikram Aggarwal86b93932012-05-01 16:46:06 -0700283 mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 5 * 1000);
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700284 }
285
286 /**
287 * Ignore back events after the user has entered the decrypt screen and while the device is
288 * encrypting.
289 */
290 @Override
291 public void onBackPressed() {
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800292 // In the rare case that something pressed back even though we were disabled.
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700293 if (mIgnoreBack)
294 return;
295 super.onBackPressed();
296 }
297
Jason parks8fd5bc92011-01-12 16:03:31 -0600298 @Override
299 public void onCreate(Bundle savedInstanceState) {
300 super.onCreate(savedInstanceState);
Jason parks35933812011-01-21 15:48:20 -0600301
Andy Stadler95974062011-02-01 17:35:20 -0800302 // If we are not encrypted or encrypting, get out quickly.
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700303 final String state = SystemProperties.get("vold.decrypt");
Ben Komalo91a2f052011-08-16 17:48:25 -0700304 if (!isDebugView() && ("".equals(state) || DECRYPT_STATE.equals(state))) {
Jason parks35933812011-01-21 15:48:20 -0600305 // Disable the crypt keeper.
Jason parks8fd5bc92011-01-12 16:03:31 -0600306 PackageManager pm = getPackageManager();
307 ComponentName name = new ComponentName(this, CryptKeeper.class);
Dianne Hackborn140f6c62011-10-16 11:49:00 -0700308 pm.setComponentEnabledSetting(name, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
309 PackageManager.DONT_KILL_APP);
310 // Typically CryptKeeper is launched as the home app. We didn't
Dianne Hackborn644fa422011-10-18 13:38:03 -0700311 // want to be running, so need to finish this activity. We can count
312 // on the activity manager re-launching the new home app upon finishing
313 // this one, since this will leave the activity stack empty.
Dianne Hackborn140f6c62011-10-16 11:49:00 -0700314 // NOTE: This is really grungy. I think it would be better for the
315 // activity manager to explicitly launch the crypt keeper instead of
316 // home in the situation where we need to decrypt the device
317 finish();
Jason parks8fd5bc92011-01-12 16:03:31 -0600318 return;
319 }
Jason parks35933812011-01-21 15:48:20 -0600320
Vikram Aggarwalb96b35a2012-05-01 11:09:39 -0700321 // Disable the status bar, but do NOT disable back because the user needs a way to go
322 // from keyboard settings and back to the password screen.
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800323 mStatusBar = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE);
324 mStatusBar.disable(sWidgetsToDisable);
Andy Stadler14997402011-02-01 15:34:59 -0800325
Vikram Aggarwalea1186d2012-05-03 15:35:03 -0700326 setAirplaneModeIfNecessary();
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700327 mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
Andy Stadler14997402011-02-01 15:34:59 -0800328 // Check for (and recover) retained instance data
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700329 final Object lastInstance = getLastNonConfigurationInstance();
Andy Stadler14997402011-02-01 15:34:59 -0800330 if (lastInstance instanceof NonConfigurationInstanceState) {
331 NonConfigurationInstanceState retained = (NonConfigurationInstanceState) lastInstance;
332 mWakeLock = retained.wakelock;
Ben Komalo04606752011-08-18 14:50:26 -0700333 Log.d(TAG, "Restoring wakelock from NonConfigurationInstanceState");
Andy Stadler14997402011-02-01 15:34:59 -0800334 }
Jason parksec5a45e2011-01-18 15:28:36 -0600335 }
Jason parks35933812011-01-21 15:48:20 -0600336
Andy Stadler95974062011-02-01 17:35:20 -0800337 /**
338 * Note, we defer the state check and screen setup to onStart() because this will be
339 * re-run if the user clicks the power button (sleeping/waking the screen), and this is
340 * especially important if we were to lose the wakelock for any reason.
341 */
342 @Override
343 public void onStart() {
344 super.onStart();
Ben Komalod4758ef2011-09-08 14:36:08 -0700345 setupUi();
Ben Komalo0e666092011-09-01 15:42:00 -0700346 }
347
348 /**
349 * Initializes the UI based on the current state of encryption.
350 * This is idempotent - calling repeatedly will simply re-initialize the UI.
351 */
352 private void setupUi() {
353 if (mEncryptionGoneBad || isDebugView(FORCE_VIEW_ERROR)) {
354 setContentView(R.layout.crypt_keeper_progress);
355 showFactoryReset();
356 return;
357 }
358
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700359 final String progress = SystemProperties.get("vold.encrypt_progress");
Ben Komalo0e666092011-09-01 15:42:00 -0700360 if (!"".equals(progress) || isDebugView(FORCE_VIEW_PROGRESS)) {
Andy Stadler95974062011-02-01 17:35:20 -0800361 setContentView(R.layout.crypt_keeper_progress);
362 encryptionProgressInit();
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700363 } else if (mValidationComplete || isDebugView(FORCE_VIEW_PASSWORD)) {
Paul Lawrenceb05f39d2014-02-04 10:22:19 -0800364 final IMountService service = getMountService();
365 int type = StorageManager.CRYPT_TYPE_PASSWORD;
366 try {
367 type = service.getPasswordType();
368 } catch (Exception e) {
369 Log.e(TAG, "Error while getting type - showing default dialog" + e);
370 }
371
372 if(type == StorageManager.CRYPT_TYPE_PIN) {
373 setContentView(R.layout.crypt_keeper_pin_entry);
374 } else if (type == StorageManager.CRYPT_TYPE_PATTERN) {
375 setContentView(R.layout.crypt_keeper_pattern_entry);
376 } else {
377 setContentView(R.layout.crypt_keeper_password_entry);
378 }
Andy Stadler95974062011-02-01 17:35:20 -0800379 passwordEntryInit();
Ben Komalod4758ef2011-09-08 14:36:08 -0700380 } else if (!mValidationRequested) {
381 // We're supposed to be encrypted, but no validation has been done.
382 new ValidationTask().execute((Void[]) null);
383 mValidationRequested = true;
Andy Stadler95974062011-02-01 17:35:20 -0800384 }
385 }
386
Jason parksf8217302011-01-26 13:11:42 -0600387 @Override
388 public void onStop() {
389 super.onStop();
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700390 mHandler.removeMessages(MESSAGE_COOLDOWN);
391 mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS);
392 mHandler.removeMessages(MESSAGE_NOTIFY);
Andy Stadler14997402011-02-01 15:34:59 -0800393 }
394
395 /**
396 * Reconfiguring, so propagate the wakelock to the next instance. This runs between onStop()
397 * and onDestroy() and only if we are changing configuration (e.g. rotation). Also clears
398 * mWakeLock so the subsequent call to onDestroy does not release it.
399 */
400 @Override
401 public Object onRetainNonConfigurationInstance() {
402 NonConfigurationInstanceState state = new NonConfigurationInstanceState(mWakeLock);
Ben Komalo04606752011-08-18 14:50:26 -0700403 Log.d(TAG, "Handing wakelock off to NonConfigurationInstanceState");
Andy Stadler14997402011-02-01 15:34:59 -0800404 mWakeLock = null;
405 return state;
406 }
407
408 @Override
409 public void onDestroy() {
410 super.onDestroy();
Jason parksf8217302011-01-26 13:11:42 -0600411
412 if (mWakeLock != null) {
Ben Komalo04606752011-08-18 14:50:26 -0700413 Log.d(TAG, "Releasing and destroying wakelock");
Jason parksf8217302011-01-26 13:11:42 -0600414 mWakeLock.release();
415 mWakeLock = null;
416 }
417 }
418
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700419 /**
420 * Start encrypting the device.
421 */
Jason parksec5a45e2011-01-18 15:28:36 -0600422 private void encryptionProgressInit() {
Jason parks35933812011-01-21 15:48:20 -0600423 // Accquire a partial wakelock to prevent the device from sleeping. Note
424 // we never release this wakelock as we will be restarted after the device
425 // is encrypted.
Ben Komalo04606752011-08-18 14:50:26 -0700426 Log.d(TAG, "Encryption progress screen initializing.");
Ben Komalo9ee164f2011-09-21 10:40:50 -0700427 if (mWakeLock == null) {
Ben Komalo04606752011-08-18 14:50:26 -0700428 Log.d(TAG, "Acquiring wakelock.");
429 PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
430 mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
431 mWakeLock.acquire();
432 }
Jason parks35933812011-01-21 15:48:20 -0600433
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700434 ((ProgressBar) findViewById(R.id.progress_bar)).setIndeterminate(true);
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700435 // Ignore all back presses from now, both hard and soft keys.
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800436 setBackFunctionality(false);
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700437 // Start the first run of progress manually. This method sets up messages to occur at
438 // repeated intervals.
Jason parksf8217302011-01-26 13:11:42 -0600439 updateProgress();
440 }
441
Andy Stadler13d62042011-01-31 19:21:37 -0800442 private void showFactoryReset() {
443 // Hide the encryption-bot to make room for the "factory reset" button
444 findViewById(R.id.encroid).setVisibility(View.GONE);
445
446 // Show the reset button, failure text, and a divider
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700447 final Button button = (Button) findViewById(R.id.factory_reset);
Andy Stadler13d62042011-01-31 19:21:37 -0800448 button.setVisibility(View.VISIBLE);
449 button.setOnClickListener(new OnClickListener() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700450 @Override
Andy Stadler13d62042011-01-31 19:21:37 -0800451 public void onClick(View v) {
452 // Factory reset the device.
453 sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR"));
454 }
455 });
456
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700457 // Alert the user of the failure.
458 ((TextView) findViewById(R.id.title)).setText(R.string.crypt_keeper_failed_title);
459 ((TextView) findViewById(R.id.status)).setText(R.string.crypt_keeper_failed_summary);
Andy Stadler13d62042011-01-31 19:21:37 -0800460
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700461 final View view = findViewById(R.id.bottom_divider);
462 // TODO(viki): Why would the bottom divider be missing in certain layouts? Investigate.
Ben Komalof0104df2011-08-16 17:48:42 -0700463 if (view != null) {
464 view.setVisibility(View.VISIBLE);
465 }
Andy Stadler13d62042011-01-31 19:21:37 -0800466 }
467
Jason parksf8217302011-01-26 13:11:42 -0600468 private void updateProgress() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700469 final String state = SystemProperties.get("vold.encrypt_progress");
Jason parksf8217302011-01-26 13:11:42 -0600470
Ben Komalo0e666092011-09-01 15:42:00 -0700471 if ("error_partially_encrypted".equals(state)) {
Andy Stadler13d62042011-01-31 19:21:37 -0800472 showFactoryReset();
473 return;
474 }
475
Jason parksf8217302011-01-26 13:11:42 -0600476 int progress = 0;
477 try {
Ben Komalo91a2f052011-08-16 17:48:25 -0700478 // Force a 50% progress state when debugging the view.
479 progress = isDebugView() ? 50 : Integer.parseInt(state);
Jason parksf8217302011-01-26 13:11:42 -0600480 } catch (Exception e) {
481 Log.w(TAG, "Error parsing progress: " + e.toString());
482 }
483
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700484 final CharSequence status = getText(R.string.crypt_keeper_setup_description);
Ben Komalo04606752011-08-18 14:50:26 -0700485 Log.v(TAG, "Encryption progress: " + progress);
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700486 final TextView tv = (TextView) findViewById(R.id.status);
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700487 if (tv != null) {
488 tv.setText(TextUtils.expandTemplate(status, Integer.toString(progress)));
489 }
Jason parksf8217302011-01-26 13:11:42 -0600490 // Check the progress every 5 seconds
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700491 mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS);
492 mHandler.sendEmptyMessageDelayed(MESSAGE_UPDATE_PROGRESS, 5000);
Jason parksf8217302011-01-26 13:11:42 -0600493 }
494
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700495 /** Disable password input for a while to force the user to waste time between retries */
Jason parksf8217302011-01-26 13:11:42 -0600496 private void cooldown() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700497 final TextView status = (TextView) findViewById(R.id.status);
Andy Stadler13d62042011-01-31 19:21:37 -0800498
Jason parksf8217302011-01-26 13:11:42 -0600499 if (mCooldown <= 0) {
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700500 // Re-enable the password entry and back presses.
Jason parks06c5ff42011-03-01 10:17:40 -0600501 mPasswordEntry.setEnabled(true);
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800502 setBackFunctionality(true);
Vikram Aggarwalf576dd62012-05-22 10:58:10 -0700503 status.setText(R.string.enter_password);
Jason parksf8217302011-01-26 13:11:42 -0600504 } else {
Andy Stadler13d62042011-01-31 19:21:37 -0800505 CharSequence template = getText(R.string.crypt_keeper_cooldown);
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700506 status.setText(TextUtils.expandTemplate(template, Integer.toString(mCooldown)));
Andy Stadler13d62042011-01-31 19:21:37 -0800507
Jason parksf8217302011-01-26 13:11:42 -0600508 mCooldown--;
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700509 mHandler.removeMessages(MESSAGE_COOLDOWN);
510 mHandler.sendEmptyMessageDelayed(MESSAGE_COOLDOWN, 1000); // Tick every second
Jason parksf8217302011-01-26 13:11:42 -0600511 }
Jason parksec5a45e2011-01-18 15:28:36 -0600512 }
Jason parks35933812011-01-21 15:48:20 -0600513
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800514 /**
515 * Sets the back status: enabled or disabled according to the parameter.
516 * @param isEnabled true if back is enabled, false otherwise.
517 */
518 private final void setBackFunctionality(boolean isEnabled) {
519 mIgnoreBack = !isEnabled;
520 if (isEnabled) {
521 mStatusBar.disable(sWidgetsToDisable);
522 } else {
523 mStatusBar.disable(sWidgetsToDisable | StatusBarManager.DISABLE_BACK);
524 }
525 }
526
Paul Lawrenceb05f39d2014-02-04 10:22:19 -0800527 protected LockPatternView.OnPatternListener mChooseNewLockPatternListener =
528 new LockPatternView.OnPatternListener() {
529
530 @Override
531 public void onPatternStart() {
532 }
533
534 @Override
535 public void onPatternCleared() {
536 }
537
538 @Override
539 public void onPatternDetected(List<LockPatternView.Cell> pattern) {
540 new DecryptTask().execute(LockPatternUtils.patternToString(pattern));
541 }
542
543 @Override
544 public void onPatternCellAdded(List<Cell> pattern) {
545 }
546 };
547
548 private void passwordEntryInit() {
549 // Password/pin case
Jason parks06c5ff42011-03-01 10:17:40 -0600550 mPasswordEntry = (EditText) findViewById(R.id.passwordEntry);
Paul Lawrenceb05f39d2014-02-04 10:22:19 -0800551 if (mPasswordEntry != null){
552 mPasswordEntry.setOnEditorActionListener(this);
553 mPasswordEntry.requestFocus();
554 // Become quiet when the user interacts with the Edit text screen.
555 mPasswordEntry.setOnKeyListener(this);
556 mPasswordEntry.setOnTouchListener(this);
557 mPasswordEntry.addTextChangedListener(this);
558 }
559
560 // Pattern case
561 mLockPatternView = (LockPatternView) findViewById(R.id.lockPattern);
562 if (mLockPatternView != null) {
563 mLockPatternView.setOnPatternListener(mChooseNewLockPatternListener);
564 }
Jason parks35933812011-01-21 15:48:20 -0600565
Vikram Aggarwalc62d3212012-05-02 16:29:10 -0700566 // Disable the Emergency call button if the device has no voice telephone capability
567 final TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
568 if (!tm.isVoiceCapable()) {
569 final View emergencyCall = findViewById(R.id.emergencyCallButton);
570 if (emergencyCall != null) {
571 Log.d(TAG, "Removing the emergency Call button");
572 emergencyCall.setVisibility(View.GONE);
573 }
574 }
575
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700576 final View imeSwitcher = findViewById(R.id.switch_ime_button);
Ben Komalo9fcb6a72011-08-26 14:40:18 -0700577 final InputMethodManager imm = (InputMethodManager) getSystemService(
578 Context.INPUT_METHOD_SERVICE);
579 if (imeSwitcher != null && hasMultipleEnabledIMEsOrSubtypes(imm, false)) {
580 imeSwitcher.setVisibility(View.VISIBLE);
581 imeSwitcher.setOnClickListener(new OnClickListener() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700582 @Override
Ben Komalo9fcb6a72011-08-26 14:40:18 -0700583 public void onClick(View v) {
584 imm.showInputMethodPicker();
585 }
586 });
Jason parks00046d62011-06-13 17:38:45 -0500587 }
David Brown8373b452011-06-20 12:38:45 -0700588
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700589 // We want to keep the screen on while waiting for input. In minimal boot mode, the device
590 // is completely non-functional, and we want the user to notice the device and enter a
591 // password.
592 if (mWakeLock == null) {
593 Log.d(TAG, "Acquiring wakelock.");
594 final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
595 if (pm != null) {
596 mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
597 mWakeLock.acquire();
598 }
599 }
Ben Komalo9fcb6a72011-08-26 14:40:18 -0700600 // Asynchronously throw up the IME, since there are issues with requesting it to be shown
601 // immediately.
602 mHandler.postDelayed(new Runnable() {
603 @Override public void run() {
604 imm.showSoftInputUnchecked(0, null);
605 }
606 }, 0);
607
David Brown8373b452011-06-20 12:38:45 -0700608 updateEmergencyCallButtonState();
Vikram Aggarwald1147252012-05-08 13:52:30 -0700609 // Notify the user in 120 seconds that we are waiting for him to enter the password.
Vikram Aggarwal86b93932012-05-01 16:46:06 -0700610 mHandler.removeMessages(MESSAGE_NOTIFY);
Vikram Aggarwald1147252012-05-08 13:52:30 -0700611 mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 120 * 1000);
Jim Millerfb3d5ca2013-11-14 14:40:22 -0800612
613 // Dismiss keyguard while this screen is showing.
614 getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
Jason parks8fd5bc92011-01-12 16:03:31 -0600615 }
616
Ben Komalo9fcb6a72011-08-26 14:40:18 -0700617 /**
618 * Method adapted from com.android.inputmethod.latin.Utils
619 *
620 * @param imm The input method manager
621 * @param shouldIncludeAuxiliarySubtypes
622 * @return true if we have multiple IMEs to choose from
623 */
624 private boolean hasMultipleEnabledIMEsOrSubtypes(InputMethodManager imm,
625 final boolean shouldIncludeAuxiliarySubtypes) {
626 final List<InputMethodInfo> enabledImis = imm.getEnabledInputMethodList();
627
628 // Number of the filtered IMEs
629 int filteredImisCount = 0;
630
631 for (InputMethodInfo imi : enabledImis) {
632 // We can return true immediately after we find two or more filtered IMEs.
633 if (filteredImisCount > 1) return true;
634 final List<InputMethodSubtype> subtypes =
635 imm.getEnabledInputMethodSubtypeList(imi, true);
636 // IMEs that have no subtypes should be counted.
637 if (subtypes.isEmpty()) {
638 ++filteredImisCount;
639 continue;
640 }
641
642 int auxCount = 0;
643 for (InputMethodSubtype subtype : subtypes) {
644 if (subtype.isAuxiliary()) {
645 ++auxCount;
646 }
647 }
648 final int nonAuxCount = subtypes.size() - auxCount;
649
650 // IMEs that have one or more non-auxiliary subtypes should be counted.
651 // If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary
652 // subtypes should be counted as well.
653 if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) {
654 ++filteredImisCount;
655 continue;
656 }
657 }
658
659 return filteredImisCount > 1
660 // imm.getEnabledInputMethodSubtypeList(null, false) will return the current IME's enabled
661 // input method subtype (The current IME should be LatinIME.)
662 || imm.getEnabledInputMethodSubtypeList(null, false).size() > 1;
663 }
664
Jason parks8fd5bc92011-01-12 16:03:31 -0600665 private IMountService getMountService() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700666 final IBinder service = ServiceManager.getService("mount");
Jason parks8fd5bc92011-01-12 16:03:31 -0600667 if (service != null) {
668 return IMountService.Stub.asInterface(service);
669 }
670 return null;
671 }
672
673 @Override
674 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
Jason parks00046d62011-06-13 17:38:45 -0500675 if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE) {
Jason parks8fd5bc92011-01-12 16:03:31 -0600676 // Get the password
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700677 final String password = v.getText().toString();
Jason parks8fd5bc92011-01-12 16:03:31 -0600678
Jason parksec5a45e2011-01-18 15:28:36 -0600679 if (TextUtils.isEmpty(password)) {
680 return true;
681 }
Jason parks35933812011-01-21 15:48:20 -0600682
Jason parks8fd5bc92011-01-12 16:03:31 -0600683 // Now that we have the password clear the password field.
684 v.setText(null);
685
Vikram Aggarwalde3c9cb2012-05-01 15:37:30 -0700686 // Disable the password entry and back keypress while checking the password. These
687 // we either be re-enabled if the password was wrong or after the cooldown period.
Jason parks06c5ff42011-03-01 10:17:40 -0600688 mPasswordEntry.setEnabled(false);
Vikram Aggarwalbf459da2012-11-08 16:54:59 -0800689 setBackFunctionality(false);
Jason parks8fd5bc92011-01-12 16:03:31 -0600690
Ben Komalo04606752011-08-18 14:50:26 -0700691 Log.d(TAG, "Attempting to send command to decrypt");
Jason parks06c5ff42011-03-01 10:17:40 -0600692 new DecryptTask().execute(password);
Jason parks35933812011-01-21 15:48:20 -0600693
Jason parks8fd5bc92011-01-12 16:03:31 -0600694 return true;
695 }
696 return false;
697 }
David Brown8373b452011-06-20 12:38:45 -0700698
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700699 /**
Vikram Aggarwalea1186d2012-05-03 15:35:03 -0700700 * Set airplane mode on the device if it isn't an LTE device.
701 * Full story: In minimal boot mode, we cannot save any state. In particular, we cannot save
702 * any incoming SMS's. So SMSs that are received here will be silently dropped to the floor.
703 * That is bad. Also, we cannot receive any telephone calls in this state. So to avoid
704 * both these problems, we turn the radio off. However, on certain networks turning on and
705 * off the radio takes a long time. In such cases, we are better off leaving the radio
706 * running so the latency of an E911 call is short.
707 * The behavior after this is:
708 * 1. Emergency dialing: the emergency dialer has logic to force the device out of
709 * airplane mode and restart the radio.
710 * 2. Full boot: we read the persistent settings from the previous boot and restore the
711 * radio to whatever it was before it restarted. This also happens when rebooting a
712 * phone that has no encryption.
713 */
714 private final void setAirplaneModeIfNecessary() {
715 final boolean isLteDevice =
Wink Saville55434042012-06-14 12:33:43 -0700716 TelephonyManager.getDefault().getLteOnCdmaMode() == PhoneConstants.LTE_ON_CDMA_TRUE;
Vikram Aggarwalea1186d2012-05-03 15:35:03 -0700717 if (!isLteDevice) {
718 Log.d(TAG, "Going into airplane mode.");
Christopher Tate6a5929b2012-09-10 15:39:05 -0700719 Settings.Global.putInt(getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 1);
Vikram Aggarwalea1186d2012-05-03 15:35:03 -0700720 final Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
721 intent.putExtra("state", true);
Christopher Tate6a5929b2012-09-10 15:39:05 -0700722 sendBroadcastAsUser(intent, UserHandle.ALL);
Vikram Aggarwalea1186d2012-05-03 15:35:03 -0700723 }
724 }
725
726 /**
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700727 * Code to update the state of, and handle clicks from, the "Emergency call" button.
728 *
729 * This code is mostly duplicated from the corresponding code in
730 * LockPatternUtils and LockPatternKeyguardView under frameworks/base.
731 */
David Brown8373b452011-06-20 12:38:45 -0700732 private void updateEmergencyCallButtonState() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700733 final Button emergencyCall = (Button) findViewById(R.id.emergencyCallButton);
David Brown8373b452011-06-20 12:38:45 -0700734 // The button isn't present at all in some configurations.
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700735 if (emergencyCall == null)
736 return;
David Brown8373b452011-06-20 12:38:45 -0700737
738 if (isEmergencyCallCapable()) {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700739 emergencyCall.setVisibility(View.VISIBLE);
740 emergencyCall.setOnClickListener(new View.OnClickListener() {
741 @Override
742
David Brown8373b452011-06-20 12:38:45 -0700743 public void onClick(View v) {
744 takeEmergencyCallAction();
745 }
746 });
747 } else {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700748 emergencyCall.setVisibility(View.GONE);
David Brown8373b452011-06-20 12:38:45 -0700749 return;
750 }
751
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700752 final int newState = TelephonyManager.getDefault().getCallState();
David Brown8373b452011-06-20 12:38:45 -0700753 int textId;
754 if (newState == TelephonyManager.CALL_STATE_OFFHOOK) {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700755 // Show "return to call" text and show phone icon
David Brown8373b452011-06-20 12:38:45 -0700756 textId = R.string.cryptkeeper_return_to_call;
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700757 final int phoneCallIcon = R.drawable.stat_sys_phone_call;
758 emergencyCall.setCompoundDrawablesWithIntrinsicBounds(phoneCallIcon, 0, 0, 0);
David Brown8373b452011-06-20 12:38:45 -0700759 } else {
760 textId = R.string.cryptkeeper_emergency_call;
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700761 final int emergencyIcon = R.drawable.ic_emergency;
762 emergencyCall.setCompoundDrawablesWithIntrinsicBounds(emergencyIcon, 0, 0, 0);
David Brown8373b452011-06-20 12:38:45 -0700763 }
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700764 emergencyCall.setText(textId);
David Brown8373b452011-06-20 12:38:45 -0700765 }
766
767 private boolean isEmergencyCallCapable() {
768 return getResources().getBoolean(com.android.internal.R.bool.config_voice_capable);
769 }
770
771 private void takeEmergencyCallAction() {
772 if (TelephonyManager.getDefault().getCallState() == TelephonyManager.CALL_STATE_OFFHOOK) {
773 resumeCall();
774 } else {
775 launchEmergencyDialer();
776 }
777 }
778
779 private void resumeCall() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700780 final ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
David Brown8373b452011-06-20 12:38:45 -0700781 if (phone != null) {
782 try {
783 phone.showCallScreen();
784 } catch (RemoteException e) {
785 Log.e(TAG, "Error calling ITelephony service: " + e);
786 }
787 }
788 }
789
790 private void launchEmergencyDialer() {
Vikram Aggarwalbfa3a642012-03-29 14:07:22 -0700791 final Intent intent = new Intent(ACTION_EMERGENCY_DIAL);
David Brown8373b452011-06-20 12:38:45 -0700792 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
793 | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
794 startActivity(intent);
795 }
Vikram Aggarwald1147252012-05-08 13:52:30 -0700796
797 /**
798 * Listen to key events so we can disable sounds when we get a keyinput in EditText.
799 */
800 private void delayAudioNotification() {
Vikram Aggarwald1147252012-05-08 13:52:30 -0700801 mNotificationCountdown = 20;
802 }
803
804 @Override
805 public boolean onKey(View v, int keyCode, KeyEvent event) {
806 delayAudioNotification();
807 return false;
808 }
809
810 @Override
811 public boolean onTouch(View v, MotionEvent event) {
812 delayAudioNotification();
813 return false;
814 }
815
816 @Override
817 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
818 return;
819 }
820
821 @Override
822 public void onTextChanged(CharSequence s, int start, int before, int count) {
823 delayAudioNotification();
824 }
825
826 @Override
827 public void afterTextChanged(Editable s) {
828 return;
829 }
David Brown8373b452011-06-20 12:38:45 -0700830}